Mechanics of STW, please help me…….

I’m after some help and advice if possible please…..

A couple of weeks ago I was driving my 2008 ford galaxy 1.8 tdci with manual gearbox when I had to stop for some traffic lights. This was only for a few seconds but when I went to set off again I had no power. It wasn’t like it was in limp mode, there was nothing when I put the throttle down but was idling fine.

Luckily I was able to freewheel it a short distance to get off the main road and noticed while doing this that the display was saying engine malfunction, so when I was safely out of the way I swit he’d it off. Tried phoning a couple of people to help with the kids etc but couldn’t get hold of anyone so thought I’d try and start it purely to see if any other messages popped up on the dashboard.

When I started the car again the message had disappeared and it seemed to be revving absolutely fine. So I chanced driving it home as I was only about a mile away, apart from one or two plucks I made it home and parked up without any issues. It’s been sat since then but have started it a couple of times and it seems to be fine, not taken it for a spin or anything though since it happened.

It was suggested that it could be something to do with the throttle position sensor as it was idling fine. I took that out earlier and it was pretty dirty so I’ve cleaned that with some contact cleaner. It seemed to be running fine after that so took it for a short spin and all was good. Thought I’d test it after it had sat a while to see if there was any codes still on it and a few popped up. I then started the car and the problem was there again, idles fine but when you put your foot on the throttle it chokes up and almost dies.

The codes that were found on the obd reader are in the pic, the egr ones have been there since I had the car about a year ago so I assume they wouldn’t be a cause of this happening (also had them for the 4 years or so I had my mondeo previously without any issues either). Car was fully serviced at the mot in April so only a few months ago so that should theoretically rule out filters etc.

Anyone got any advice on where to start with this? I’m at a complete loss with it and it’s really getting me down as the summer holidays so far have been absolutely terrible between this and other things going on.

Thanks

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I’m not familiar with this engine – the closest I’ve come to it is a 2.4tdci in my Transit.  I’d be thinking along the lines of EGR especially if it’s been flagging faults up for awhile. A stuck open EGR causes all sorts of issues.

Unfortunately reading the codes and ultimately fixing the faults thats generating them is the only only real way of sorting it. Anything else and it ends up just randomly chucking expensive parts at it in the hope of fixing it.

I do know the transit engine certainly needs genuine or a proper OEM fuel filter – aftermarket tend not to filter as fine which causes injector/hp fuel pump issues. Just to bear in mind next service.

Sorry I can’t help further.

The postimage link isn’t working properly.

Images don’t seem to work so these are the codes and descriptions of the faults

P0490:00-AE EGR (Exhaust Gas Recirculation) A Control Circuit High
Continuous Memory DTCs

P0691:00-6E Fan 1 Control Circuit Voltage Low
Continuous Memory DTCs

P1204:00-2E Injector Circuit Open/Shorted – Cylinder #4
Continuous Memory DTCs

P0490:00-AE EGR (Exhaust Gas Recirculation) A Control Circuit High
Snapshot Data

P0691:00-6E Fan 1 Control Circuit Voltage Low
Snapshot Data

P1204:00-2E Injector Circuit Open/Shorted – Cylinder #4
Snapshot Data

P0490 EGR (Exhaust Gas Recirculation) A Control Circuit High
Freeze Frame Mode 2

The symptoms sound identical to my aged Transit connect, I sometimes had to switch the engine off whilst moving, re-starting and everything connected again. It turned out to be the sensor on the fly by wire accelerator pedal. It was fixed fairly cheaply with a pattern part, hope this helps mate. Nice to hear from you but maybe not in these circumstances.  Edit. Sometimes it malfunctioned when it got hot, sometimes a spray of GT85 was a temporary fix. Love to your family.

Looks like injector #4 is knackered or the loom to #4 is damaged (as well as a sticking/knackered EGR)

If it was me tinkering i’d swop the injector with #2 and  clear the codes see if the problem follows it to #2 (dead injector) or stayed at #4 (knackered loom). But I appreciate this is fairly involved spannering.

I had similar when the mass airflow sensor went on my ’55 1.8 tdci Focus.

I had similar symptoms in 1.6 petrol Smax and same reason as wheelsonfire1. I think you’d have had a throttle signal mismatch code if that were the case, though. (My issue was actually a coolant leak causing a short in the connector).

Not sure a single injector issue would lead to no throttle response though…

Its got codes for EGR and an injector. It’s pointless looking at anything else as nothing is flagging a code!!!!!

If an injector is being flagged it might have been running ‘lumpy’ occasionally.

Throttle potentiometer should be able to see live values in Fordscan or equivalent.